Two tiny beads, each of mass 3.2 g, carry equal-magnitude charges. When they are placed 6.4 cm apart and released in outer space, they begin to accelerate toward each other at 538 m/s². What is the magnitude of the charge on each bead?
a. 5.6 ✖ 10⁻⁵ C
b. 6.8 ✖ 10⁻⁵ C
c. 7.2 ✖ 10⁻⁵ C
d. 8.4 ✖ 10⁻⁵ C
